ML20217G114

Responds to 990927 Ltr from P Salas,Providing Response to NRC Risk Determination Associated with 990630 Flooding Event at Sequoyah Facility.Meeting to Discuss Risk Determination Issues Scheduled for 991021 in Atlanta,Ga

ML20217G114
Person / Time
Site:	Sequoyah
Issue date:	10/07/1999
From:	Fredrickson P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:	Scalice J TENNESSEE VALLEY AUTHORITY
References
50-327-99-04, 50-328-99-04, NUDOCS 9910210186
Download: ML20217G114 (4)

Text

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f'- October 7,1999 1Tennessee Valley Authority'

                         . ATTN: Mr. J. A Scal!ce Chief Nuclear Officer and'                                                                             '

Executive Vice President 6A Lookou.t Place

                         ;1101 Market Street J

Chattanooga, TN 37402-2801 l

SUBJECT:

         = NRC INTEGRATED INSPECTION REPORT 50-327, 50-328/99 RESPONSE TO SEQUOYAH FLOODING EVENT RISK DETERMINATION I'

Dear Mr. Scalice:

This letter is in response to the September 27,1999,' letter from Mr. P. Salas, the Sequoyah I Nuclear Plant Licensing and Industry Affairs Manager, to the NRC. This letter provided Tennessee Valley Authority's (TVA) response to the NRC risk determination associated with a June 30,1999, flooding event at your Sequoyah facility. This issue was discussed in my letter to you, dated September 7,1999. We have evaluated your response and, based on our evaluation, do not believe that it provides a basis for us to agree with your conclusion that this

event _is in the licensee regulatory response band (Green). Our concerns are related primarily to the determination of initiating event frequency, the recovery time for AC power and the q

uncertainties' associated with these assumptions. As such, we have not changed our initial

                         ' position, provided to you in our September 7 letter, that TVA performance for this event is in the

( . increased regulatory response band (White), i in the September 27 letter, Mr. Salas requested that, in the event we did not agree with TVA's conclusions, a meeting be scheduled to discuss the risk evaluations before we make our final decision. Based on this request, and a telephone conversation between Mr. Salas and me on October 7,1999, a meeting has been scheduled for October 21,1999, at 1:00 p.m. to discuss

                       . the risk determination issues. The location of the meeting will be at the NRC Region ll Office, Sam Nunn Atlanta Federal Center,61 Forsyth St., SW, Atlanta, Georgia, in Suite 24T20. This meeting is an open meeting as per" Staff Meetings Open to the Public; Final Policy Statement"

(September 20,1994; 59 FR 48340).-

Should you have any questions concerning this meeting, please contact me at 404-562-4530. Sincerely, (Original signed by Paul E. Fredrickson) . Paul E. Fredrickson, Chief Reactor Projects Branch 6 Division of Reactor Projects Docket Nos. 50-327, 50-328 License Nos. DPR-77, DPR-79 -} cc: (See page 2)

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1 vs TVA 2 cc: Karl W. Singer, Senior Vice President D. L. Koehl, Plant Manager Nuclear Operations Sequoyah Nuclear Plant 1 Tennessee Valley Authority Tennessee Valley Authority  ; 6A Lookout Place P. O. Box 2000 1101 Market Street Soddy Daisy, TN 37379 Chattanooga, TN 37402-2801 Michael H. Mobley, Director  ; Jack A. Bailey, Vice President Division of Radiological Health  ! Engineering and Technical Services TN Dept. of Environment and , Tennessee Valley Authority Conservation l 6A Lookout Place 3rd Floor, LNC Annex 1101 Market Street 401 Church Street Chattanooga, TN 37402-2801 Nashville, TN 37243-1532 1 Masoud Bajestani County Executive Site Vice President Hamilton County Courthouse , Sequoyah Nuclear Plant Chattanooga, TN 37402-2801 ' Tennessee Valley Authority P. O. Box 2000 Soddy-Daisy, TN 37379 i General Counsel Tennessee Valley Authority ET 10H 400 West Summit Hill Drive ' Knoxville, TN 37902 N. C. Kazanas, General Manager Nuclear Assurance Tennessee Valley Authority SM Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mark J. Burzynski, Manager Nuclear Licensing Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 l Dedro Salas, Manager

       !.icensing and Industry Affairs Sequoyah Nuclear Plant Tennessee Valley Authority P. O. Box 2000 Soddy-Daisy, TN 37379

TVA 3 Distribution:

                                                                                                                      )

• Hard Paper Copy B. Dean, DISP /PIPB Region 11 Regional Coordinator OEDO (16E15)

L. R. Plisco, Rll H. N. Berkow, NRR R. W. Hernan, NRR i PUBL!C - NRC Resident inspector, Operations U. S. Nuclear Regulatory Commission 1260 Nuclear Plant Road Spring City, TN 37381 NRC Resident inspector Sequoyah Nuc. lear Plant U. S. Nuclear Regulatory Commission 2600 Igou Ferry Road Soddy-Daisy, TN 37379

           .       E-Mail Meeting Announcement Coordinator, OADM/DFIPS (PMNS)

Region 11 Administrator's Secretary DRP Division Secretary Region 11 Division Directors and Deputies Regioital Counsel Region ll Public Affairs Officer Region 11 RMB Chief  ; Chief, RAB, AEOD Headquarters Operations Officer

• SEE PREVIOUS CONCURRENCE OF FICE Ril. ors SIGNATURE NAME R Bembard*

oATE 10/ /99 10/ /99 10/ /99 10/ /99 10/ /99 10; /99 10/ /D9 COPY? YES NO YES NO YES NO YES NO YES NO YES NO YES NO OFFICIAL REcoRo COPY DOCUMENT NAME: hRPB6 SC' MEETINGS \ Resp-sdp-mtg 10-39 wpd

7 - 1 a

TVA' 3 Distribution:

• Hard Paper Coov B. Dean, DISP /PIPB Region ll Regional Coordinator OEPO (16E15)

L. R. Plisco, Rll H. N. Berkow, NRR R. W. Hernan, NRR

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D. W. Jr::, PJL - 2 0. " Thrp:=, PJ!

                   & C. '.h%:.,- Rl;      -

4 O. Te ,PS PUBLIC NRC Resident inspector, Operations U. S. Nuclear Regulatory Commission 1260 Nuclear Plant Road Spring City, TN 37381 NRC Resident inspector Sequoyah Nuclear Plant U. S. Nuclear Regulatory Commission 2600 Igou Ferry Road .- Soddy-Daisy, TN 37379

            .       E-' Mail Meeting Announcement Coordinator, OADM/DFIPS (PMNS)

Region ll Administrator's Secretary DRP Division Secretary Region ll Division Directors and Deputies Regional Coura,el Region 11 Public Affairs Officer Region 11 RMB Chief Chief, RAB, AEOD Headquarters Operations Officer OFFICE Ril.D]ts , /l SIGNATURE . j JW NAME 'R Bemhard DATE 10/ 7 /99 10/ /99 10/ /99 10/ /99 10/ 19 9 10/ /09 10/ /99 COPY? (YEh NO YES NO YES NO YES NO YES NO YES NO YES NO OFFICIAL RECMcoPY DOCUMENT NAME: 1:\RPB6\SQ\ MEETINGS \ Resp-adp-mtg 10-99.wpd

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